Question

B(n)=1 (-2)^n-1
What is the 4th term in the sequence

Answer 1

The 4th term in the sequence is -8.

Explanation:

The nth term of the sequence B is given by:

`B(n) = (-2)^(n-1)`

So the fourth term will be given by:

B when n = 4, that is, B(4).

`B(4) = (-2)^(4-1) = (-2)^(3) = -8`

The 4th term in the sequence is -8.